PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/02-22:28:10
G02     210.4          53.0               13.4 +/-    0.74      16.3 +/-    0.74  0.050 / 0.060
G06     103.2          80.5               11.6 +/-    0.42      11.7 +/-    0.42  0.050 / 0.060
G12     314.6          26.7                9.7 +/-    1.12      18.3 +/-    1.12  0.080 / 0.220
G17     51.0           36.8                9.8 +/-    0.68      15.0 +/-    0.68  0.070 / 0.230
G19     30.1           53.9               11.3 +/-    0.49      13.6 +/-    0.49  0.060 / 0.080
G24     274.6          42.6               11.8 +/-    0.86      16.4 +/-    0.86  0.060 / 0.060
G28     115.5          23.4               12.9 +/-    0.77      26.1 +/-    0.77  0.040 / 0.060